Shadertoy exposes audio through a 512x2 texture, where the first row is the spectrum, and second row is wave data.
Pixel format is GL_RED GL_UNSIGNED_BYTE,
meaning that each pixel contains only one 8-bit channel.
According to this shader from iq the audio in the browser is supposed to have a samplerate of 48kHz, but as it turns out, that's not the case: most likely it will be in 44.1kHz.
| Config { font = "xft:Liberation Mono-8:regular" | |
| , bgColor = "#323232" | |
| , fgColor = "#EEEEEC" | |
| , position = Static { xpos = 0, ypos = 0, width = 1024, height = 11 } | |
| , lowerOnStart = True | |
| , commands = | |
| [ | |
| Run Network "eth0" ["-L","0","-H","32","--normal","#8ae234","--high","red"] 10 | |
| , Run Network "ppp0" ["-L","0","-H","32","--normal","#8ae234","--high","red"] 10 | |
| , Run Network "eth1" ["-L","0","-H","100","--normal","#8ae234","--high","red"] 10 |